Heater-car.



C. A. MOORE.

HEATER GAR.

ArPLIoATIoN FILED lJUNE a, 1909.

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APPLICATION FILED JUNE 8V, 1909.

1,016,243. v Patented Jan. 30, 1912.

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UNITED sTATEs PATENT OEEIOE.

CHARLES A. MOORE, OF ST. PAUL, MINNESOTA, ASSIGNOR TO MOORE PATENTCAR COMPANY, A CORPORATION OF MNNIESOTA.l

HEATER-CAR.

Specification of Letters Patent.

Application filed June 8, 1909.

Patented Jan. 30,1912. serial No. 500,797.

To all Lo/wm, t may concern Be it known that l, CHARLES A. MOORE, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Heater-Cars, of which the following is a specification.

My invention relates to improvements in heater cars and has among its objects the equalization of heat in all parts of the provision chamber for the purpose of preserving' the contents of the car. Heretofore it has been customary to heat the interior of a car by air which soon becomes vitiated and when the lading therein constitutes perishable fruits, vegetables and other commodities, this has been found objectionable.

My invention overcomes this defect by introducing into the car pure air which has been heated and ejecting foul cold air and gases which have accumulated.

.My invention further provides a heating device for a car which will not interfere with the interior, supplies heated air uniformly throughout the same and is easily operated. The heater is outside and does not therefore take up any room in the provision chamber and is removable so that it can be set aside in warm weather or can be replaced by a new device of its kind in a short space of time. The objection of operating a stove as heretofore practiced, which necessarily consumes oxygen, and produces gases, smoke and soot, in the provision chamber, is obviated.

In prior devices the heater which has been placed within the car has proved unsatisfactory because the oxygen has been eX- hausted from the atmosphere and the fire in consequence reduced or extinguished. By placing the heater outside of the provision chamber and passing fresh air through it and into the provision chamber, the former defect is obviated and an even desired tem perature easily maintained.

It has heretofore been customary to open the car from time to time while in 'transit for the purpose of caring for the heater. ln this way the temperature is reduced frequently below the freezing point with disastrous results to the lading. By the use of my invention this danger is overcome as it is not necessary to open the car from the time it is loaded until it reaches its destination.

In the accompanying drawings forming part of this speciiication Figure 1 is a longitudinal section showing` a detail of a car; Fig. 2 is a section of Fig. 1 taken on the line X-X, and. Fig. 3 is a det-ail side view of the heater inclosing frame, a portion of the car body being shown.

ln the drawings A represents a freight car which is adapted for the transportation of perishable provisions or lading. This body has the usual doorway 2 forming a side entrance leading into the car and its walls including its floor and ceiling are insulated by dead air spaces 3 and poor heat conducting material. Hung below the floor substantially midway between the ends of the car, is a heater inclosing frame B which is preferably located near one side where it has an ent-rance through a doorway 5. In the doorway is hinged a door 6 which is adapted to be held closed by a hasp and lock 7 and 8. A heater C in the form of a hydrocarbon oil stove or of any other type desired, is placed in the heater inclosing frame and has connected therewith through a jointed pipe 9 a heating drum D. A horizontal partition 10 secured to the side walls of the heater inclosing frame separates the interior of said inclosing frame into upper and lower compartments 11 and 12 the stove C being located in the lower compartment 12 and the heating drum supported by the upper section` of the pipe 9 upon said partition or in any other manner desired, in the upper compartment 11.

Disposed at opposite sides of the heater inclosing frame are two passageways 13 and 14 leading down which are formed by the side walls of the inclosing frame and vertical partitions 15. These passageways open from the provision chamber in the car to the lower portion of the lower chamber 12 and serve to conduct impure air from the lower portion of the provision chamber to the stove through the draft openings 16. The smoke chamber 17 of the heating drum is connected with a smoke pipe 18 running through one of the sides of the car and opening through its roof to the outer atmosphere. This smoke pipe forms an exit for the smoke and gases from the stove and also for the impure air which is drawn off by the passageways 13 and 1.1 leading down and out from the provision chamber in the car. The air chamber 19 of the heating drum receives fresh air from outside of t-he car through the downwardly projecting pipe 20 the lower end of which projects through the floor of the heater inclosing frame and is surrounded by a guard 21 on said floor to protect the inlet from draft which is produced by the motion of the car. The upper section of the heater inclosing chamber has an-outlet through a pipe 22 leading up through one of the walls of the car and a port 23 into the upper portion of the provision chamber. In this manner air is admitted through the inlet pipe 20, heated in the chamber 19 and ejected into the upper portion of the car where it circulates throughout the provision chamber. From the lower portion of the provision chamber the foul cold air and gases are drawn off by the passageways 13 and 14 leading down and used for supplying oxygen to the burner of the stove from whence they are passed out through the smoke pipe. lVhen ports such as 13 and 14 are employed in the floor leading down and out the use of false floors is obviated.

So that the circulation may be more com-V plete throughout the car at all times when loaded with provisions, the walls and floor may be formed with air passageways E y which connect with the passageways 13 and 14 leading down and out. Ports Q4 near the roof and floor of the car form openings into said passageways through which air from the provision chamber is drawn down into the stove and out through smoke pipe 18.

In operation, fresh air is admitted into the provision chamber through the pipe 20, heating chamber 19 of the stove, passageway 22 and port 23. It then circulates throughout the provision chamber and is conducted through the passageways 13 and 14 and draft openings E to the stove whereupon it supplies oxygen to the burner and escapes through the pipe 18 with the smoke and gases from the stove to the outer at- Inosphere. In this manner pure heated air is supplied and circulated throughout the provision chamber at all times and the lading of perishable provisions is preserved in sanitary condition.

In accordance with'the patent statutes I have described the principles of operation of my invention together with apparatus which I now consider to represent the best embodiment thereof but I desire to have it understood that the construction shown is only illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth within -the scope of the following claimszi car having a provision chamber, an inclosing chamber disposed below said provision chamber, a heater in said inclosing chamber having an exit for smoke and gases outside of said provision chamber and an inlet for air received from within the car, and a heating drum in said inclosiug chamber, :1rranged to be heated by said heater and having a fresh air inlet from outside and an exit into the upper portion of the provision chamber, said car having air passages in its walls in communication with said provision chamber and said inclosing chamber; whereby a current of fresh warm air passes through the drum and car and vitiated cold air egresses from the car through the heater with the smoke and lgases to the outer atmosphere.

2. In apparatus of the class set forth, a car having a provision chamber, an inclosing chamber below said provision chamber, a stove in said inclosing chamber having an air inlet passageway fromV the inclosing chamber to its burner and an exit foil smoke and gases, and an air heating chamber in said inclosing chamber arranged to be heated by said stove having an inlet from the cuter atmosphere and an exit to the interior portion of the car, said car having air passages in its walls in communication with said provision chamber and said inclosing chamber; whereby fresh warm air circulates through the heating and provision chambers and cold vitiated air passes to the burner of the stove and escapes to the outer atmosphere.

3. In apparatus of the class set forth, a car having a provision chamber and pas-- sages in its walls in communication with said chamber, an inclosing chamber disposed below said provision chamber having upper and lower compartments and vertical down draft passages in its walls in communication with said lower compartment and the passages in the walls of said provision chamber, a heater in the lower compartment of said inclosing chamber having an air inlet from said lower compartment, and an air heating chamber in the upper compartment and arranged to be heated by said heater; said heating chamber being provided with a fresh air inlet and an exit into the upper portion of said provision chamber and said heater with an exit for smoke and gases to the outer atmosphere; whereby fresh warm air is circulated through the heating and provision chambers and cold vitiated air passes from the provision chamber through said passages down to the lower compartment of said inclosing chamber and stove and out with the smoke and gases.

4. In apparatus of the class set forth, a car having a provision chamber, an iuclosing chamber carried under the provision chamber, an oil stove in said inolosing chamber having an exit for smoke and gases to the outer atmosphere, and a heating chamber contained in said inclosing chamber and arranged to be heated by said stove, the walls of said inclosing chamber and of said provision chamber' having passages forming a winmunication between the lower portion of said provision chamber and said inclosing chamber, and said heating chamber having an air inlet from the outer atmosphere and an air outlet to the upper portion of the provision chamber; whereby fresh air is heated within the heating chamber and passed into the upper portion ot' the pro vision chamber and cold vitiated air is drawn through said passage from the provision chamber down into the stove and out with the smoke and gases.

5. In apparatus of the class set forth7 a car having a provision chamber7 an inclosing chamber below the provision chamber, a stove within said inclosing chamber and an air heating chamber arranged to be heated by said stove, said car having air passageways in itswalls in communication with said provision chamber and said inclosing chamber, said stove having an exit for smoke and gases to the outer atmosphere and said heating chamber having an inlet for fresh air and an exitto the provision chamber; whereby fresh air after being heated within the heat-ing chamber, is oirculated through the provision chamber and returned through the air passageways and nclosing chamber to the stove and from thence escapes to the outer atmosphere with the smoke and gases.

6. A car for transporting perishable lading, having a provision chamber, an inclosing chamber separate from said provision chamber, a heater in said inclosing chamber having an air inlet from said inclosing chamber to its burner, and a heating chamber within said inolosing chamber arranged to be heated by said heater having an inlet from the outer atmosphere for fresh air and a duct communicating through the walls of the oar with the upper portion of said pro-` vision chamber, said car having an air passage in its walls in communication with said provision and inclosing chambers and a duct from the heater passing through the walls of the oar to the outer atmosphere; whereby fresh air circulates through the heating and provision chambers and vitiated air is conducted from said provision chamber through said passage in the walls of the car to the outer atmosphere.

In testimony whereof, I have signed my name to this specication, in the presence of two subscribing witnesses.

CHARLES A. MOORE. Titnesses H. L. FISCHER, F. G. BRADBURY.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

